Adobe After Effects CS3 Manual do Utilizador descarregar pdf (Página 496)

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AFTER EFFECTS CS3

User Guide

491

Smoothing Specifies the roundness of the waves by blurring the water surface layer. Very high values eliminate

detail. Very low values show imperfections in the water surface layer.

Water Depth Specifies depth. A small disturbance in shallow water moderately distorts the view of the bottom, but

the same disturbance in deep water distorts the view significantly.

Refractive Index Affects the way the light bends as it passes through the liquid. A value of 1 does not distort the

bottom. The default value of 1.2 accurately simulates water. To add distortion, increase the value.

Surface Color Specifies the color of the water.

Surface Opacity Controls how much of the bottom layer is visible through the water. If you want a milky effect,

increase the Surface Opacity and Light Intensity values; a value of 0 results in a clear liquid.

Set Surface Opacity to 1.0 to perfectly reflect a sky later. With a suitable texture map, you can use this technique to

create the effect of liquid mercury.

Caustics Strength Displays the caustics, the concentrations of light on the bottom surface, caused by the lensing

effect of the water waves. This control changes the way everything looks: The waves’ dark spots get much darker, and

the light spots get much lighter. If you don’t set a value for this control, the effect distorts the bottom layer when the

waves pass over it, but it doesn’t render the lighting effect.

Sky controls

Sky Specifies the layer above the water. Scaling makes the sky layer larger or smaller. If the edges of the sky layer

show, scale the layer up. Scaling down is useful for tiling a layer to make a complex pattern.

Repeat Mode Specifies how a scaled-down sky layer is tiled. Once uses only one tile, basically turning tiling off. Tiles

uses the traditional tiling method of abutting the right edge of one layer tile to the left edge of another layer tile. This

optionworkswellifthelayercontainsarepeatingpattern,likealogo,thatneedstoreadacertainway.Reflectedabuts

each edge of a layer tile to a mirrored copy of the tile. This option can eliminate a hard edge where the two tiles meet.

If Layer Size Differs Specifies how to handle the layer when it is smaller than the composition. Intensity specifies the

opacity of the sky layer. Convergence specifies how close the sky and the bottom or water layer appear, controlling

the extent to which the waves distort the sky.

Foam effect

This effect generates bubbles that flow, cling, and pop. Use the effect’s controls to adjust attributes for the bubbles

such as stickiness, viscosity, life span, and bubble strength. You can control exactly how the foam particles interact

with each other and with their environment, and specify a separate layer to act as a map, controlling precisely where

the foam flows. For example, you can have particles flow around a logo or fill a logo with bubbles.

This effect works with 8-bpc color.

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Adobe After Effects CS3 Manual do Utilizador Página 496

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